Britain's main opposition leader, Labour's Jeremy Corbyn, beat off a potential grassroots revolt Monday at the party's annual conference in Brighton.

A bid by delegates to force Labour to back Britain remaining in the European Union (EU) ahead of a likely snap general election failed in a controversial vote in the conference hall.

Conference delegates agreed a Corbyn-backed proposition that will see Labour postponing a decision on Brexit until after a general election.

It meant party members endorsing Corbyn's stance to stay neutral while negotiating a new deal if Labour wins the next election. The party would then put the deal to a new referendum, with an option to stay in the EU on the ballot paper.

"We would put both views and say look, this is the best deal we could get; this is the remain and hopefully reform option. These are the choices before you," said Corbyn.

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While Corbyn's name echoed around the chamber from a chorus of supporters, there were howls of protests arguing that the vote had been too close to call. The chair of the proceedings faced calls for a recount.

There were calls for a card vote from some in the hall – a formal ballot which is held at Labour conferences when votes are seen to be close. However, these calls were in vain and the proceedings moved on.

Conference chair Wendy Nichols ruled that the show of hands indicated the call for an immediate remain stance on Brexit had been lost.

While the conference decision has clarified the main opposition approach to the Brexit impasse, there was criticism of the vote away from Brighton.

London Mayor Sadiq Khan said he did not believe the decision reflected the views of the overwhelming majority of Labour members "who desperately want to stop Brexit."

The recently elected leader of the pro-EU Liberal Democrats, Jo Swinson, accused Corbyn of showing "a total lack of leadership on Brexit."

Meanwhile, British Prime Minister Boris Johnson and European Council President Donald Tusk were having a meeting on the sidelines of the United Nations General Assembly in New York, discussing progress in talks between Britain and the EU on finding an alternative to the Irish backstop, said a British government spokeswoman.

"The prime minister emphasized that in order to secure a deal we will now need to see movement and flexibility from the EU," she said, adding that the leaders had agreed to keep in touch over the coming weeks.

Following the meeting, Tusk said on Twitter: "No breakthrough. No breakdown. No time to lose."

(With input from Xinhua, Reuters)

(Cover: Britain's Labour party leader Jeremy Corbyn attends the opening rally of The World Transformed festival in Brighton, Britain, September 21, 2019. /Reuters Photo)